Production of reserve effects on textile fiber.



45 containing a grou mean STATES ri l-TENT orricn.

. ERNEST BENT Z, OI MANCHESTER, ENG-LkND, ASSIGNOR T0 BADISCHE ANILIN & SODA FABRIK, OFJLUDWIGSHAFEN-ON-THE-IEINE, GERMANY, A C01U?OBATI ON.

. :e-nonucrron or misnnvs EFFECTS. on TEX-TILE mania.

1 ,098,1.4:5. Ito Drawing.

5 road, WhaIIey' Ban 6, Manchester, in the county of Lancaster, ngland, have invented new and useful Improvements in the Production of Reserve Effects on Textile Fiber, of which the following is a s eeification.

In the specification of. app cation for Letters Patent Serial No. 584,299 is described the production of. discharge effects on fiber which has been dyed with a vet coloring matter or with a sulfur coloring matter, the

rocesses there claimed being characterized y the addition to the discharging paste of a compound containing an aralkyl residue,

the said compound being capable of parting with the aralkyl residue so that this latter '20 can combine with a leuco com ound of a vat coloring matter or of a sul ur coloring matter According to the aforesaid specification the aralkyl residue may contain a group capable of forming a. salt either in the free form or otherwise.

sp include sulfur coloring matters, and I profor to carry out the process of this invention by applying to the material a reserve paste containing such aralkyl compound and then printing or padding the material thus prepared with a paste containing a colorin matter and a suitable reducing agent, sum for instance as sodium formaldehyde sulfoxylate and glucose. If desired, the ara/lkyl compound can be used in conjunction with other compounds which act as reserves,

for instance with acids or with oxidizing bodies or withmechanical reserving materials.

When employing an aralkyl compound capable of forming a salt attached to t 1e aralkyl residue, compounds of the leuco coloringmat-ter with the aralkyl residue are produced which are easily soluble in water and can thus readily be removed from the fiber. Inthis way white reserve efi'cctscanbeobtained. If, however,

Specification of Letters fatent.

Applieation'filcd Kay- 20, 1811. Serial No. 628,590.

Patented Mayan, 1914.

the. aralkyl residue contain no such group capable of formingi a salt, and the coloring matter which it is esiredtq reserve consists I of. indigo, or the like, a yellow compound insoluble in dilute alkalis is generally produced and under some conditions this yellow compound may become fixed on the fiber and yellow reserve effects-on a. blue ground thus be} btained. The reserve, or resist,

paste maybe printed by itself, or side by side llhfittlllg patterns withother suitable gprmtmg colors so as to vary theeflects ob ta ned. The textile fabrics me be printed with the resists and may be pad ed or. cover printed 1n one and the same operation, in-

stead of being printed with the. resists and.

dried and'afterward paddedor cover-printed and dried in a separate operation.

My method or process is applicable to texttile fahribs or goods com need of cotton, linen, wool, silk, artificial s1 k, and mixtures of such fibers, and the composition of the reserve, or resist, paste will be varied in accordance wlth the nature of the fiber, the properties of the coloring matter or dyestuif and the composition of the color mixture.

The follewin examples will serve to illustrate further t 1e nature of; my invention, which, however, is not confined to these examples.

Example 1: 'Print on material which has previousy' been pre ared with glucose a paste containing eig ity grams of a fifty per cent. um solution. and twenty grams of the calcium salt of the disulfonic acid obtainable from dimethyl-phenyl-benzyl-ammonium chlorid, and dry at ordinary tem perature. Then pad the material with a paste containing from fourteen t0 fifteen gramsof indigo pure TwASF. twenty per cent. and from eighty five to ninety grams of alkaline thickening. Then dry, steam for one minute, develo in running water, and finally acidify. he alkaline thickening used 'inAbis, example is obtained from sixty grams of dea'k bumt starch in sixty grams of water, tlnrty grams ("of wheat starch in thirty grams of water, and four hundred cubic centimeters of forty-one per cent. icausti soda solut on. Corresponding moth:

' one-tent ods can be employed when using other aralkyl compounds and when reserving other vat, or sulfur, coloring matters.

Exam 1e 2: Prepare a paste from one and liter of forty per cent. British gum thickening, six hundred and eighty grams of dimethyl -phenyl -benzylammonium chlorid and one and one-tenth liter of water. This is suitable for printing on cotton goods or fabrics which are afterward padded or cover printed,with color mixtures containin a suitable vat coloring matter, such as bri liant indigo BB.

Example 3: Prepare a paste from one and one-tenth liter of forty per cent. British gum thickening, four hundred and fifty grams of dimethyl-phenyl-benzyl-ammonium chlorid, four hundred and fifty grams of ammonium chlorid and one and one-tenth liter of water. This resist. paste is suitable for printing on goods which are subsequently padded or cover-printed with indigoid dyestuffs or with indanthrene dyes.

Example 4: Mix together and then boil four kilos of the, sodium salt of the disul- -fonic acid obtainable from'dimethyl-phenylbonzyliainmonium chlorid, ten kilos of water, one kilo of zinc oxid and four kilos of British gum. r

Example 5: Dissolve four kilos of lead acetate in seven and a half kilos of water and add a hot solution of one and a half kilo of dimethyl-phenyl-benzyl-amnmmum ehlorid in two and a half kilos of. Water. After cooling, filter off the lead 'chlorid which has separated out, and then thicken the clear solution by heating it; with five kilos of British gum. This paste is suitable for producing yellow resist effects, it being necessary that. the material be chromed after being treated with the vat coloringmatter or the like. v Example 6: Dissolve oneand a half kilogram of dimethybphenyl-benzyl-ammonium chloridin four and a half liters of an alizarin red printing mixture of the usual composition, preferably containing, in addition to the aliaarin and other essential ingredients, the oil-preparation known as Lizarol D or similar oil compound.

Example? Dissolve one and a half kilo of dimcthyl-phenyl-benzyl-animonium clilorid in ten liters of an ordinary aZo claret printing color, prepared by diazotizing alpha i; naphthylamin and addmg sodium acetate or analogous compound, and suitably thickening the mixture. This paste is printed upon lfora pigment green reserve,

dissolve one and ahalf kilo of dimethyl-phenyl-benzyl-ammoniumchlorid inten litersof also permits the use of certain vat colors which, so far as I am aware, have not hitherto been successfully applied. Even in the roduction'of efiects which can be obtained by the older process, my process offers certain technical advantages, for instance, in obtaining reserve efiects on plain grounds it obviates the necessit for re vious dyeing, since the fixation o the co orirtitg matter and the production of the reserve e' ects take place simultaneously.

Now what I claim'isz- 1. The production of resist efl'ects by printing upon textile goods or fabrics a. reserve paste consisting essentially of a compound containing an aralkyl residue and subsequently app ying to the said oods a color mixture consisting essentially o a suitable vat colorin matter with the admixture of assistants :1 a ted to promote the fixation of the vat co orin matter on the fiber, substantially as herein efore described.

2. The production of colored reserve effects by printing upon textile goods or fabrics a reserve paste consisting essentially of a com und containingan aralk l residue suitab y thickened, with the a dition of suitable coloring matters with the assistants, if any, necessar for their fixation upon the fiber and en sequently applying to the said goods 0. color mixture consisting esentially of a suitable vat colorin matter with the admixture of assistants 0. apted to promote the fixation of the colorin matter on the fiber, substantially as herembefore described. I

3L The production. of colored reserve effects by printing upon textile goods or fabrics a reserve paste consisting essentially of a com ound containing an aralkyl reecertain salts on able ot'acting as mordanta, and subsequent y applying to. thesaid goods a color mixture consisting essentially of I suitable vat color with the admixture of aasistants adapted to promote the fixation of the colorin matter on the fiber, and finally dyeing su stantially as hereinbefore described.

4. The production of resist efi'ects. by printing upon textile goods or fabrics previously pre ared with an alkaline betonaphthol so ution a reserve paste consisting essentially of a 'compound containing an aralkyl residue suitably thickened, with the .idue suit-a 1y thickened with the addition of addition of a suitable diazo solution and subsequently applying to the said goods .21 color mixture consisting essentially of a vat coloring matter, with the addition of assistants adapted to promote the fixation of the vat coloring matter on the fiber, substantially as hereinbefore described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing I Witnesses.

- ERNEST BENTZ.

Witnesses:

JOHN WILLIAM THOMAS, MALCOLM SME'rmms'r. 

